Spring mounted mine car



April 7, 1942. H. H. PANCAKE SPRING MOUNTED MINE CAR 2 Sheets-Sheet 1 Filed April 20, 1940 INENTOR Herman /7. fi /wake Wall/4;

ATTORNEY HJH.PANCAKE SPRING MOUNTED MINE CAR April 7, 1942 Filed April 20, 1940 Sheets-Sheet 2 INVENTOR f/ermazz hf Fam'aie II II II I ATTORNEY Patented Apr. 7, 1942 i UNIT ED STATES I PATENT; OFFlCE- y I 2,278,893 g SPRING MOUNTED MINE CAR Herman H. Pancake, Berwick, Pa, assignor to American Car' and Foundry Company, New' York, N. Y., a corporation of New Jersey ApplicationApril 2c, 1940,:Serial No..330,667

9 Claims. (Cl; 105 -3651) This invention relates to mine cars in general .and in particularto metallic mine cars which are mounted on springs or other resilient members.

The bulk of mine .cars in thepast have been constructed wholly of wood or of a combination of wood and metal and accordingly the cars could be mounted directly on the axles without special provision to absorb shocks. In recent years the trend has been toward all metallic cars and toward larger capacity cars and it has become almost necessary :for these cars "to be mounted upon resilient supports. It is an object, therefore, of the present invention to provide an all metal mine car' which is mounted on re- .silientmembers to absorb shocks from lll'lGrlOfldbed.

A further object of the invention is the provision .of a mine car withspecial side sill elements and a new-and improved type of resilient journal. box mounting. i

A still furtherobject of "the invention is the provision of an .all metal minerca'r which .is resiliently mounted on .its axles in sucha manner as to .permit the floorto be: carried as low as possible with respect to the wheels.

These and other objects of the invention will be apparent to persons skilled in the art from .a study of the following description-and accompanying drawings, in which:

Figure 1 is a side elevational viewof the-improved mine car; I

Fig. 2 is an end View of the car with one-half thereof in section and taken on line 2-2 of Figure 1; 1

Fig. 3 is an inverted plan view of the mine car; I r

Fig. 4 is a sectional View through theimproved axle box and side sill taken substantially in the plane of the axle; l

Fig. 5 is a-sectional view similar to Fig. 4 but taken on a transverse plane through'the resilient mounting member; I 7

Fig. 6 is a side View of a portion'of the car showing a slight modification of the mounting means; 7 I

Fig. 7 is a sectional view taken through the modified mounting means of Fig. 6;

Fig. 8 is a sectional viewtaken through the side sill of the car and showing in detail the form of the sill as used in Figs. l to '7 inclusive; I

Fig. 9 is a sectional view similar toFig. 8-bu t showing a slight modification thereof for riveted construction; I

Fig. 10 is a sectional view similar to'Fig. 8 showing a still further modification, and

frame member.

Fig. 11 is a similar. sectional view showing a .stilllfurthermodification oi the sill and combining riveted and welded construction.

"Referring now to the drawings in detail, it will :be. seen that the car is constructed with end :walls .2 and side walls 4 joined thereto .and all connected in any suitable manner to an under- As is customary, side stake'sfi 1 are connected to the side sheets and to the side .sill elements either directly, as indicated in Figs.

2 and 8, or by means of gussets. The underframe member, as clearly shown in Figs. 2, and 4 to 8 inclusive, is formed by a floor sheet 8 having the side edges flanged downwardly as at 10 for the full depth of the sill element. of this floor sill forming flange is welded as at l2 to the outer edge of a horizontal leg 14 0f a pressed angle member which has its vertical leg l6 directed upwardly and welded as at lato the under side of the floor sheet. In this manner a complete. box section side sill is formed at each side of the car by the flanged floor sheet and by'the angle pressing. As clearly shown in Fig.

3, the vertical wall It and horizontal flange M of the angle member extend continuously from end to end of thecar. In other words, the true desired theends of the floor sheet may be flanged downwardly but in practice it will be found more economical to .form the end sill as described. In order to suitably bracei the car floorto prevent sagging Land toprevent distortion of the sidesills, cross members such as channels 2B are provided extending across the car between the vertical legs l6 of the sills andthe webs of these channel members may extend through notches in the leg I6 in order that they may be welded to the downturned flange of the floor, as clearly shown in Fig.3. The same result maybe obtained by welding bracing plates to the floor and downturned flange prior to the applicationof the 1 7 cured to the central portion of the sills and to g The lower "edge the vertical leg l6 of the side sills. The end sills and end sill bracing means are pierced and suitably formed to receive spring mounted couplings C, while the end sills adjacent their ends have welded or otherwise secured thereto suitable spring mounted bumpers B. It will be seen that a minimum of metal has been used since the floor forms part of the side sill elements of the car and the end sill is constructed with a minimum of material yet yielding a maximum strength in each case.

In order to obtain as low a car as possible spaced openings are cut in the horizontal leg M in order to receive springs S, theupper ends of which support the car through the medium of a sill stifiening member 34 welded to the floor and sill forming sheet inside the box section sill. The lower ends of the springs which project below the box section sill element rest upon ledge 36 of a journal box J. This journal box is formed with a central axle receiving opening 38 formed by a continuation of the spring supporting ledge and by vertical walls40, joined to the ends of the spring receiving ledge. These walls 40 are spaced apart a sufiicient distance as to receive the box section sill element therebetween and have their ends trued and adapted to cooperate with guides 42 welded to the sides of the sill forming elements. Thus widely spaced guides vare provided for the journal boxes beyond the supporting springs which will accordingly give greater stability to the journal boxes. The sides .40 of the journal box are slotted as at 44 to receive a bolt or other anchor means 46 extending through the sill element between the springs and preventing separation of the journal box and sill, while permitting motion of the journal box toward the sill element against the spring resistance. It will thus be seen that the journal box and spring elements telescope with the side sills of the car giving a compact, efficient arrangement and permitting the car floor to be carried as low as possible while still remaining above the side sills. The, journal boxes, as clearly shown in Figs. 2, 3 and 4, are supported on the ends of axles A which are in turn supported by wheels W which, in the present instance, are of the antifriction type, that is, mounted on the axles through the medium of antifriction bearings.

In some rare instances it may be desirable to mount the car directly on the journal box without the use of springs and this may be readily accomplished as shown in Figs. 6 and 7 by interposing short lengths of pipe 50 within the box section sills and through which pipe bolts 52 may be passed to securely fasten journal box 54 directly onto the sill, thus the box section sill will be strengthened and crushing prevented by the use of the pipe which also acts as the positioning means for the bolts and which prevents the sill from being crushed by excessive tightening of the bolts. p

In some instances it may be desirable to eliminate the welding and make the sill element of riveted construction and this may be accomplished as shown in Fig. 9. In this form the floor forming sheet is flanged upwardly as at 60 and directly connected by means, such as rivets 62, to the upwardly extending edge of a U-form sill element having outer leg 64, horizontal web 65 and vertical inner leg 61 terminating in an inwardly directed flange 68 riveted as at 69 to the floor sheet. V v

The sillelement may also be formed, as clearly shown in Fig. 10, by causing the floor sheet to be flanged upwardly as at 10 providing the side wall of the car, with the sill element formed by a true U-shaped member having outer and inner legs 12 and 14 respectively welded at their free edges to the floor and joined together by web 16 located in spaced relation to the floor.

The sill element may also be formed, as clearly shown in Fig. 11, by flanging the sides of the floor sheet downwardly as at 80, thence outwardly as at 82 with the free edge welded as at 83 to the lower free edge of an angle member.

. not been shown. It will be obvious,.of course,

that slight modifications in the journal box and journal box mountings will also be possible and while the invention has been described more or less in detail, it is to be understood that all such modifications and rearrangements of parts are contemplated as will fall within the scope of the appended claims defining my invention.

What is claimed is:

1. In a mine car, a body, spaced end sills, substantially closed box-section side sills extending from end sill to end sill and supporting the body and being formed in part by the floorof said body, axles extending transversely of the body wholly beneath the horizontal plane through the lowermost portion of said closed .box section side sills and being supported on wheels, journal boxes supported on the axles and having partsthereof overlapping the outside side portions of said boxsection side sills, and resilient means positioned within said box-section sills and resiliently supporting said body upon said journal boxes.

2. In a mine car, a body, spaced end sills, substantially closed box-section side sills extending from end sill to end sill and supporting the body and being formed in part by the floor of said body, axles extending transversely of the body wholly beneath the horizontal plane through the lowermost portion of said closed box section side sills and being supported on wheels, journa1-boxes supported on the axles and having upstanding outside side walls overlapping and guided by the side portions of said box-section side sills. and resilient means positioned within said box-:section sills and resiliently supporting said body upon said journal boxes.

3. In a mine car, a body, spaced end sills, substantially closed box-section side sills extending from end sillto end sill and supporting the body and being formed in part by the floor of said body, axles extending transversely of the body wholly beneath the horizontal plane through the lowermost portion of said closed box section side sills and being supported on wheels, journal boxes supported on the axles and having spaced upstanding side walls, said side walls being of substantially the same height as said side sills and overlapping the outside side portions thereof, and resilient means positioned within said box-section sills and resiliently supporting said body upon said journal boxes.

4. In a mine'car, a body, substantiallyclosed box-section side sills supporting the, body and being formed in part by said body, axles extending transversely of the body and being supported on wheels, journal boxes supported on the axles and having upstanding side walls of substantially the same height as the side sills, said side walls overlapping and being guided by the outside side portions of the sills, retaining means extending through said walls and sills and retaining said Walls and sills against spreading and in overlapping relation, and resilient means positioned within said box-section sills on either side of said retaining means and resiliently supporting said body upon the journal boxes.

5. In a mine car, a body, substantially closed box-section side sills supporting the body and being formed in part by said body, axles extending transversely of the body and being supported on wheels, journal boxes supported on the axles and having spaced upstanding side walls overlapping the outer sides of the side portions of said boxsection sills, means secured at spaced points to the outer sides of the side portions of said sills and slidably engaging the ends of said spaced upstanding side walls to limit the same to substantially vertical movements, and resilient means positioned Within said box-section sills and resiliently supporting said body upon the journal boxes.

6. In a mine car, a body, substantially closed box-section side sills supporting the body, axles extending transversely of the body and supported on Wheels, journal boxes supported on the axles and having spaced upstanding side Walls guided by the outside side portions of the side sills, and

spring means located partially within said closed box section side sills and extending below the same into bearing engagement with said journal boxes to resiliently support the body on the journal boxes.

'7. In a mine car, a body, substantially closed box-section side sills supporting the body, axles extending transversely of the body and supported on wheels, journal boxes supported on the axles and having spaced upstanding side walls guided by the side portions of the side sills, means secured to the outer side of the closed box section side sills and cooperating With said upstanding side walls to limit longitudinal movement of said journal box, and springs located Within the side sills and bearing on said journal boxes to resiliently support the body on the journal boxes.

8. In a mine car, a body, substantially closed box-section side sills supporting the body and being formed in part by said body, axles extending transversely of the body and being supported on wheels, journal boxes supported on the axles and having spaced upstanding side walls overlapping the outer sides of the side portions of said box section sills, means secured to the outer sides of the closed box-section side sills and providing guide surfaces cooperating with the end edges of said upstanding journal box side walls to limit longitudinal movement thereof, and resilient means located Within the side sills and bearing on said journal boxes to resiliently support the body thereon.

9. In a mine car, a body, substantially closed box-section side sills supporting the body, axles extending transversely of the body and supported on wheels, journal boxes supported on the axles and having spaced upstanding side Walls guided by the side portions of the side sills, means secured to the outer sides of the closed box-section side sills and providing guide surfaces cooperating with the end edges of said upstanding side walls of the journal boxes to limit longitudinal movement thereof, and resilient means located within the side sills and between planes extending transversely of the sill through the guide surfaces, said resilient means bearing on said journal boxes to resiliently support the body thereon.

HERMAN H. PANCAKE. 

